SunAirPlus Product Specification

Data! Data! Data! More Cowbell!

SunAirPlus includes an I2C INA3221 3 Channel Current / Voltage Monitor and a I2C 4 channel 12 bit Analog to Digital Converter (ADS1015). The INA3221 allows you to monitor all of the major currents and voltages in the system (Battery / Solar Panels / Load – Computer ). You can tell what your solar power project is doing in real time.

Here are some results from the SunAirPlus board using the onboard INA3221. You can see that the battery is almost fully charged and the solar cell voltage (actually a variable power supply on the test bench) is 5.19V and it is supplying 735mA. The Output voltage is 4.88V because we are fiddling with the board. The Library works like a champ.

You can use this board to power your projects and add a servo or stepper motor to allow it to track the sun using photoresistors to generate even more power! It incorporates a number of outstanding features in a very compact, inexpensive single fully assembled and tested PC Board.

RasPiConnect / ArduinoConnect Control Panel

The RasPiConnect/ArduinoConnect control panel for SunAirPlus is shown below. SwitchDoc Labs has completed a licensing agreement with MiloCreek to put a version of RasPiConnect and ArduinoConnect up on the Appstore for SunAirPlus customers for $2.00 (in April 2015). Those current owners of RasPiConnect / ArduinoConnect can download the configuration files from github.com/switchdoclabs in late March, 2015.